Maternal outcomes and management in women with body mass index (BMI) ≥60 kg/m2 and comparison women (BMI >50–59.9 kg/m2)
| Number (%) of women with BMI ≥60 kg/m2 (n=111) | Number (%) of women with BMI >50–59.9 kg/m2 (n=821) | Unadjusted OR | 95% CI | P values | ||
| Management | ||||||
| Difficulties undertaking ultrasounds | No | 30 (27) | 228 (27.8) | 1 | ||
| Yes | 78 (70.3) | 539 (65.7) | 1.1 | (0.70 to 1.72) | 0.678 | |
| Missing | 3 (2.7) | 54 (6.6) | ||||
| Induced | No | 70 (63.1) | 505 (61.5) | 1 | ||
| Yes | 40 (36) | 303 (36.9) | 0.95 | (0.63 to 1.44) | 0.817 | |
| Missing | 1 (0.9) | 13 (1.6) | ||||
| Caesarean delivery | No | 48 (43.2) | 398 (48.5) | 1 | ||
| Yes | 62 (55.9) | 411 (50.1) | 1.25 | (0.84 to 1.87) | 0.274 | |
| Missing | 1 (0.9) | 12 (1.5) | ||||
| Thromboprophylaxis usage in antenatal period | No | 84 (75.7) | 706 (86) | 1 | ||
| Yes | 27 (24.3) | 101 (12.3) | 2.25 | (1.39 to 3.64) | 0.001 | |
| Missing | 0 (0) | 14 (1.7) | ||||
| Thromboprophylaxis usage in postpartum period | No | 24 (21.6) | 255 (31.1) | 1 | ||
| Yes | 86 (77.5) | 545 (66.4) | 1.68 | (1.04 to 2.70) | 0.033 | |
| Missing | 1 (0.9) | 21 (2.6) | ||||
| Maternal outcome | ||||||
| Wound infection in those with caesarean | No | 47 (42.3) | 344 (41.9) | 1 | ||
| Yes | 14 (12.6) | 57 (6.9) | 1.8 | (0.93 to 3.48) | 0.081 | |
| N/A | 49 (44.1) | 410 (49.9) | ||||
| Missing | 1 (0.9) | 10 (1.2) | ||||
| Venous thromboembolism | No | 111 (100) | 807 (98.3) | |||
| Yes | 0 (0) | 7 (0.9) | 0 | (0.0 to 4.00) | 0.325 | |
| Missing | 0 (0) | 7 (0.9) | ||||
| Hypertensive disorder during pregnancy | No | 77 (69.4) | 631 (76.9) | 1 | ||
| Yes | 33 (29.7) | 183 (22.3) | 1.48 | (0.95 to 2.29) | 0.082 | |
| Missing | 1 (0.9) | 7 (0.9) | ||||
| Pregnancy-induced hypertension | No | 94 (84.7) | 702 (85.5) | 1 | ||
| Yes | 16 (14.4) | 112 (13.6) | 1.07 | (0.61 to 1.88) | 0.823 | |
| Missing | 1 (0.9) | 7 (0.9) | ||||
| Pre-eclampsia/eclampsia | No | 93 (83.8) | 743 (90.5) | 1 | ||
| Yes | 17 (15.3) | 71 (8.6) | 1.91 | (1.08 to 3.39) | 0.026 | |
| Missing | 1 (0.9) | 7 (0.9) |